wat007
Junior Member level 3
Is it possible to switch two master SPI lines using Quad 2:1 multiplexer like (74HC257)? I want my two Master devices to access a single SPI slave (Flash). SPI speed is 4MHz. Please see attached schematics.
The reason for this is that, I have an MP3 module (master2) which already has a flash that I want my MCU (master1) to access the data from. I don't have control on SPI lines of MP3 (Master2).
The reason for this is that, I have an MP3 module (master2) which already has a flash that I want my MCU (master1) to access the data from. I don't have control on SPI lines of MP3 (Master2).